... differentiation around the SAM. The rice mutants, adaxial-abaxial bipolar leaf 1 and 2 ( abl1 and abl2 ), produce an ectopic leaf that is fused back-to-back with the fourth leaf, the first leaf produced after embryogenesis. The abaxial–abaxial fusion is associated with the formation of an ectopic shoot meristem...

...: TFL1, a transcriptional cofactor, regulates floral transition and shoot indeterminacy. This study quantifies the dynamic localisation of TFL1 and characterises its role in gene expression at these stages of reproductive development. Shoot meristem Floral transition Inflorescence development FD...

... at the shoot meristem. To isolate the gene defined by the A144 suppressor, a F2 mapping population was created and sequenced. Using the SIMPLE mapping pipeline ( Wachsman et al., 2017 ), A144 was mapped to an A-type cyclin gene CYCA3;4 on chromosome 1 ( Fig. S1 ). A G-to-A mutation occurs in the last...

...Marc Somssich; Byoung Il Je; Rüdiger Simon; David Jackson Shoot meristems are maintained by pluripotent stem cells that are controlled by CLAVATA-WUSCHEL feedback signaling. This pathway, which coordinates stem cell proliferation with differentiation, was first identified in Arabidopsis...

... meristems from cultured root explants is a widely used, but poorly understood, process in which apical plant tissues are regenerated from adult somatic tissue through the de novo formation of shoot meristems. We characterize early patterning during de novo development of the Arabidopsis shoot meristem using...

... developmental function. † Author for correspondence (e-mail: [email protected] ) * Present address: Scully, Scott, Murphy & Presser, 400 Garden City Plaza, Garden City, New York, NY 11530, USA 20 5 2003 © 2003. 2003 Homeodomain KNOX Shoot meristem knotted1 GFP...

...Michael Lenhard; Thomas Laux Stem cell maintenance in the Arabidopsis shoot meristem is regulated by communication between the apical stem cells and the underlying organizing centre. Expression of the homeobox gene WUSCHEL in the organizing centre induces stem cell identity in the overlying...

... appears to occur mainly via repression of the MYB-related gene ASYMMETRIC LEAVES1 ( AS1 ), since loss of AS1 function in an stm mutant background rescues SAM formation ( Byrne et al., 2000 ). STM mRNA is expressed in the shoot meristem primordium from the globular embryo stage...

... and Nilsson, 1995 ). Thus, at lower nodes of the lfy inflorescence, TFL1 was ectopically expressed by the time shoot meristems were distinct from their subtending cauline leaf primordia. However, at the upper nodes of the lfy inflorescence, TFL1 was not found in the meristems that expressed AP1...

...Thomas Laux; Klaus F. X. Mayer; Jürgen Berger; Gerd Jürgens ABSTRACT Self perpetuation of the shoot meristem is essential for the repetitive initiation of shoot structures during plant devel-opment. In Arabidopsis shoot meristem maintenance is disrupted by recessive mutations in the WUSCHEL (WUS...

... cell division cell differentiation Arabidopsis CLAVATA3 shoot meristem Meristems are central to higher plant development, as almost all post-embryonic organs, including roots, leaves, flowers and axillary meristems, are initiated by either shoot or root meristems. Two aspects of shoot...